CN211975641U - Internal retaining nut - Google Patents
Internal retaining nut Download PDFInfo
- Publication number
- CN211975641U CN211975641U CN202020290904.3U CN202020290904U CN211975641U CN 211975641 U CN211975641 U CN 211975641U CN 202020290904 U CN202020290904 U CN 202020290904U CN 211975641 U CN211975641 U CN 211975641U
- Authority
- CN
- China
- Prior art keywords
- longitudinal grooves
- nut
- elastic steel
- steel wires
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses an interior stopping nut, including the nut body, the screw hole is established at the center of nut body, its characterized in that: the hole wall of the threaded hole is provided with a plurality of longitudinal grooves along the circumferential direction, a plurality of elastic steel wires are arranged in the longitudinal grooves from the bottom direction of the threaded hole, the elastic steel wires in the longitudinal grooves are arranged in an inclined mode, the lower ends of the elastic steel wires in the longitudinal grooves are not exposed out of the longitudinal grooves, and the upper ends of the elastic steel wires are exposed out of the longitudinal grooves and enter the middle of the hole of the threaded hole. The utility model is used for locking of stopping in the nut during threaded connection can prevent that the pine of nut from taking off and droing, avoids the production of potential safety hazard.
Description
Technical Field
The utility model relates to a fastener product, concretely relates to nut.
Background
When the nut is used for threaded connection with the bolt in a matched mode, looseness can occur on a multi-vibration occasion or after long-time use, the nut is likely to fall off from the bolt after looseness, and therefore potential safety hazards are caused when the nut falls into the equipment. Although some measures are taken to solve the above technical problems, the technical solutions are generally not ideal and require additional parts.
Disclosure of Invention
The utility model aims to provide a not enough to prior art exists, the utility model aims at providing a locking of stopping in nut when being used for threaded connection can prevent that the pine of nut from taking off and droing, avoids the interior stopping nut that the potential safety hazard produced.
The utility model discloses a through following technical scheme implementation:
interior stopping nut, including the nut body, the screw hole is established at the center of nut body, its characterized in that: the hole wall of the threaded hole is provided with a plurality of longitudinal grooves along the circumferential direction, a plurality of elastic steel wires are arranged in the longitudinal grooves from the bottom direction of the threaded hole, the elastic steel wires in the longitudinal grooves are arranged in an inclined mode, the lower ends of the elastic steel wires in the longitudinal grooves are not exposed out of the longitudinal grooves, and the upper ends of the elastic steel wires are exposed out of the longitudinal grooves and enter the middle of the hole of the threaded hole.
The bottom of nut body is equipped with the fixed slot, and the fixed slot is fixed the lower extreme of elasticity steel wire.
The fastening connection process of the internal retaining nut and the bolt is as follows: when the nut is screwed to the outer circle of the screw rod of the bolt, the head of the screw rod of the bolt can contact with the elastic steel wire, along with the screwing of the nut, the upper end of the exposed longitudinal groove of the elastic steel wire can be pushed to completely enter the longitudinal groove, at the moment, the screw rod can pass through the middle of the threaded hole, and as the outer circle of the screw rod of the bolt is provided with the corresponding clamping groove in advance at the position corresponding to the elastic steel wire, when the nut is screwed in place, the upper end of the elastic steel wire can elastically recover and enter the clamping groove, so that the nut and the bolt have the backstop structure at the inner side of the threaded connection part, the backstop locking function of the threaded connection of the nut and the bolt can be realized, even in a multi-vibration occasion or after long-time use, the nut cannot loosen and fall off. At this time, the nut is withdrawn from the bolt unless a large reverse screwing force is applied to the nut to forcibly deform the upper end of the elastic wire outward.
Preferably, two longitudinal grooves and two elastic steel wires are arranged, and the two longitudinal grooves are staggered by 180 degrees.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic structural view of the internally stopping nut of the present invention,
figure 2 is a bottom view in elevation of figure 1,
fig. 3 is a structure view of a threaded connection between an internal retaining nut and a bolt.
Detailed Description
The details and the working principle of the embodiments of the present invention are described in detail below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the utility model discloses an interior stopping nut, including nut body 1, threaded hole 2 is established at nut body 1's center, and threaded hole 2's pore wall is equipped with two vertical grooves 3 along the circumferencial direction, and two vertical grooves 3 are the 180 degrees angles that stagger each other, and two elastic steel wire 4 are packed into vertical groove 3 from threaded hole 2's bottom direction, and the slope setting is made to elastic steel wire 4 in the vertical groove 3, and its lower extreme 42 of elastic steel wire 4 in the vertical groove 3 does not expose vertical groove 3, and its upper end 41 then exposes vertical groove 3 and enters into in the middle of threaded hole 2's the hole, nut body 1's bottom is equipped with fixed slot 5, and the groove width of fixed slot 5 is less than elastic steel wire 4's external diameter, and fixed slot 5 is fixed with.
As shown in fig. 3, work as the utility model discloses an after interior stopping nut and the mutual threaded connection of bolt that corresponds, in the upper end of elastic steel wire can elastic recovery and enter into the draw-in groove, then nut, bolt have had the stopping structure in threaded connection's inboard, and then realized the stopping locking function of the threaded connection of nut, bolt.
Claims (3)
1. Interior stopping nut, including the nut body, the screw hole is established at the center of nut body, its characterized in that: the hole wall of the threaded hole is provided with a plurality of longitudinal grooves along the circumferential direction, a plurality of elastic steel wires are arranged in the longitudinal grooves from the bottom direction of the threaded hole, the elastic steel wires in the longitudinal grooves are arranged in an inclined mode, the lower ends of the elastic steel wires in the longitudinal grooves are not exposed out of the longitudinal grooves, and the upper ends of the elastic steel wires are exposed out of the longitudinal grooves and enter the middle of the hole of the threaded hole.
2. The internally stopped nut of claim 1 further characterized by: the bottom of nut body is equipped with the fixed slot, and the fixed slot is fixed the lower extreme of elasticity steel wire.
3. The internally retaining nut of claim 1 or 2, wherein: the longitudinal grooves and the elastic steel wires are respectively provided with two, and the two longitudinal grooves are staggered by 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290904.3U CN211975641U (en) | 2020-03-11 | 2020-03-11 | Internal retaining nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020290904.3U CN211975641U (en) | 2020-03-11 | 2020-03-11 | Internal retaining nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975641U true CN211975641U (en) | 2020-11-20 |
Family
ID=73394154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020290904.3U Expired - Fee Related CN211975641U (en) | 2020-03-11 | 2020-03-11 | Internal retaining nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975641U (en) |
-
2020
- 2020-03-11 CN CN202020290904.3U patent/CN211975641U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |